- Orry-Kelly designed costumes for Bette Davis which changed in tone as the film progressed; from white at the beginning, changing to gray in mid-film, and then to black at the end when she goes insane.
- Extensive research was done to provide accuracy. The writers had a bibliography of 372 books. Art director Anton Grot made 3643 sketches from which 7360 blueprints were prepared for exterior and interior settings. A complete Mexican village was built on the Warner ranch. An English version of Werfel's play opened in New York City on 11 October 1926 and had 48 performances. The cast included Alfred Lunt and Edward G. Robinson.
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